File:Marriott Center 1.JPG|thumb|right|250px|The 22,700-seat Marriott Center in Provo, Utah, is home to the BYU Cougars' BYU Cougars men's basketball|men's and women's basketball teams.
An '''arena''' is an enclosed area, often circular or oval-shaped, designed to showcase theater
, or sporting events
. The word derives from Latin ''harena'', a particularly fine/smooth sand used to absorb blood in ancient arenas such as the Colosseum
[Claridge, Amanda (1998). ''Rome: An Oxford Archaeological Guide'' (First ed.). Oxford, UK: Oxford University Press, 1998. pp. 276–282. ISBN 0-19-288003-9.]
It is composed of a large open space surrounded on most or all sides by tiered seating for spectators. The key feature of an arena is that the event space is the lowest point, allowing for maximum visibility. Arenas are usually designed to accommodate a large number of spectators.